Finding the Fourth Proportional to 861,755.36, 1,292,721.53 and 329,723.87
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Solution
The fourth proportional to 861,755.36, 1,292,721.53 and 329,723.87 is: 494,619.66
Step by Step Solution
- Step 1: Write the proportion equation
861,755.36 : 1,292,721.53 = 329,723.87 : x - Step 2: Convert to fraction form
861,755.36/1,292,721.53 = 329,723.87/x - Step 3: Cross multiply
861,755.36x = 1,292,721.53 × 329,723.87 - Step 4: Simplify right side
861,755.36x = 426,241,137,591.69 - Step 5: Solve for x
x = 426,241,137,591.69/861,755.36 - Step 6: Final answer
x = 494,619.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.